Home / 85,544,003.80-128,316,005.70-39,485,783.80

Finding the Fourth Proportional to 85,544,003.80, 128,316,005.70 and 39,485,783.80

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Solution

The fourth proportional to 85,544,003.80, 128,316,005.70 and 39,485,783.80 is: 59,228,675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,544,003.80 : 128,316,005.70 = 39,485,783.80 : x
  2. Step 2: Convert to fraction form
    85,544,003.80/128,316,005.70 = 39,485,783.80/x
  3. Step 3: Cross multiply
    85,544,003.80x = 128,316,005.70 × 39,485,783.80
  4. Step 4: Simplify right side
    85,544,003.80x = 5,066,658,059,149,767
  5. Step 5: Solve for x
    x = 5,066,658,059,149,767/85,544,003.80
  6. Step 6: Final answer
    x = 59,228,675.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.